Collateral for a security interest recorded Mar 3, 2026 (Research Corporation Technologies, Inc.).
Term ends Mar 19, 2038 · High confidence
20-year base term ends Jun 24, 2036
Filed Mar 13, 2018 as application 15/759,643 · Granted Feb 8, 2022
Base term plus 633 days of patent term adjustment (USPTO delay)
Today
2016
2038
Clock starts
Jun 24, 2016
Jun 24, 2016
Term ends
Mar 19, 2038
Mar 19, 2038
Granted
Feb 8, 2022
Feb 8, 2022
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
633
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
19
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 633 days past its 20-year base term on prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Jun 24, 2016, when application PCT/US2016/039342, the earliest non-provisional in its chain, was filed (this one was filed Mar 13, 2018) | Jun 24, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +633 days, USPTO patent term adjustment record | Mar 19, 2038 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 19, 2038 | High confidence |
This family
| Application PCT/US2016/039342 | PCT application no patent term | no patent term |
| Application PCT/US2018/018182 | PCT application no patent term | no patent term |
| US 11,241,576 | this patent Mar 2038 | Mar 2038 |
| Application PCT/US2019/020130 | PCT application no patent term | no patent term |
| US 10,987,513 | In force Feb 2038 | Feb 2038 |
| US 10,945,761 | In force Feb 2038 | Feb 2038 |
| US 12,042,173 | In force May 2040 | May 2040 |
| US 11,167,137 | In force Jun 2036 | Jun 2036 |
8 of 19 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Apr 6, 2018 Reel 45465, frame 543 | Hansen, Marlan; Kaufmann, Christopher | University of Iowa Research Foundation | Assignment of Assignor's Interest |
| Dec 11, 2020 Reel 54705, frame 594 | University of Iowa | National Institutes of Health (Nih), U.S. Dept. of Health and Human Services (DHHS), U.S. Government | Confirmatory License |
| Mar 3, 2026 Reel 73952, frame 856 | Iotamotion, Inc. | Research Corporation Technologies, Inc. | Security Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2038
Term ends Mar 19, 2038. Maintenance fees still fall due before then
Note
The 633 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
13
later US patents cite this one
That is top 10% of utility patents granted in 2022 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.